SN74LVC112A
DUAL NEGATIVE-EDGE-TRIGGERED J-K FLIP-FLOP
WITH CLEAR AND PRESET
www.ti.com
SCAS289L–JANUARY 1993–REVISED AUGUST 2005
FEATURES
D, DB, DGV, NS, OR PW PACKAGE
(TOP VIEW)
•
•
•
•
Operates From 1.65 V to 3.6 V
Inputs Accept Voltages to 5.5 V
Max tpd of 4.8 ns at 3.3 V
1CLK
1K
V
CC
1
2
3
4
5
6
7
8
16
15
14
13
1CLR
2CLR
2CLK
Typical VOLP (Output Ground Bounce)
1J
<0.8 V at VCC = 3.3 V, TA = 25°C
1PRE
1Q
•
•
•
Typical VOHV (Output VOH Undershoot)
>2 V at VCC = 3.3 V, TA = 25°C
12 2K
11
10
9
1Q
2J
Latch-Up Performance Exceeds 250 mA Per
JESD 17
2Q
2PRE
2Q
GND
ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
DESCRIPTION/ORDERING INFORMATION
This dual negative-edge-triggered J-K flip-flop is designed for 1.65-V to 3.6-V VCC operation.
A low level at the preset (PRE) or clear (CLR) inputs sets or resets the outputs, regardless of the levels of the
other inputs. When PRE and CLR are inactive (high), data at the J and K inputs meeting the setup-time
requirements is transferred to the outputs on the negative-going edge of the clock pulse. Clock triggering occurs
at a voltage level and is not directly related to the rise time of the clock pulse. Following the hold-time interval,
data at the J and K inputs can be changed without affecting the levels at the outputs. The SN74LVC112A can
perform as a toggle flip-flop by tying J and K high.
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators
in a mixed 3.3-V/5-V system environment.
ORDERING INFORMATION
TA
PACKAGE(1)
ORDERABLE PART NUMBER
TOP-SIDE MARKING
Tube of 40
SN74LVC112AD
SOIC – D
Reel of 2500 SN74LVC112ADR
Reel of 250 SN74LVC112ADT
LVC112A
SOP – NS
Reel of 2000 SN74LVC112ANSR
Reel of 2000 SN74LVC112ADBR
LVC112A
LC112A
–40°C to 85°C
SSOP – DB
Tube of 90
Reel of 2000 SN74LVC112APWR
Reel of 250 SN74LVC112APWT
Reel of 2000 SN74LVC112ADGVR
SN74LVC112APW
TSSOP – PW
TVSOP – DGV
LC112A
LC112A
(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright © 1993–2005, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.